Yamamoto Kohji, Mori Yoshiaki
Osaka City Institute of Public Health and Environmental Sciences, Osaka 543-0026, Japan.
Bull Environ Contam Toxicol. 2009 Nov;83(5):677-80. doi: 10.1007/s00128-009-9777-6. Epub 2009 May 28.
Empirical equations for explaining trihalomethane (THM) distribution were established based on data on tap water in Osaka City before and after starting the advanced treatment and were represented by the following equations for bromodichloromethane (S(1)), dibromochloromethane (S(2)) and bromoform distribution factors (S(3)) as a function of chloroform distribution factor (S(0)), respectively: S(1) = -0.97S(0)(2) + 0.75S(0) + 0.19 (regression coefficient: r = 0.71), S(2) = 0.13S (0) (2) -0.76S(0) + 0.51 (r = 0.98) and S(3) = 0.83S(0)(2) -0.99S(0) + 0.30 (r = 0.97). Further, the derived equations were verified by THMs data of Osaka Prefecture and its surrounding cities (except for Osaka City), receiving a combination of advanced treated water and conventionally treated different source water.
基于大阪市深度处理前后的自来水数据，建立了解释三卤甲烷（THM）分布的经验方程，这些方程分别表示为溴二氯甲烷（S(1)）、二溴氯甲烷（S(2)）和溴仿分布因子（S(3)）作为氯仿分布因子（S(0)）的函数：S(1)= -0.97S(0)² + 0.75S(0) + 0.19（回归系数：r = 0.71），S(2)= 0.13S(0)² - 0.76S(0) + 0.51（r = 0.98），S(3)= 0.83S(0)² - 0.99S(0) + 0.30（r = 0.97）。此外，通过大阪府及其周边城市（大阪市除外）的三卤甲烷数据验证了推导方程，这些城市接收深度处理水和常规处理的不同水源水的组合。
